An update was uploaded today which fixes some bugs users found, plus there is now support for directinput mouse access on Win32. The downloadable lib and dll do not support DI, you will have to recompile with the di interfaces turned on via cpw_config.h.
Theres some new docs up that explain this under the documentation section of the site as well.

Also added a couple more demos including a fullscreen port of Romka's tunnel demo.